Hinoki Cypress
chamaecyparis obtusa
Also known as: ["Hinoki False Cypress","Hinoki Cypress Tree"]
Overview
A slow-growing, evergreen conifer native to Japan, prized for its graceful, feathery foliage and conical shape.
Benefits & Perks
["aesthetic foliage","shade tolerant","rare/collector’s item"]
Botanical Classification
| Phylum: | Pinophyta |
| Class: | Pinopsida |
| Order: | Pinales |
| Family: | Cupressaceae |
| Genus: | Chamaecyparis |
| Botanical Name: | Chamaecyparis obtusa |
Plant Characteristics
Basic Information
- Category: Trees
- Suitable Location: outdoor garden bed with shelter from strong winds, or large container
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"–25–30°C"}
- Hardiness: {"zones":"4–8"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining to prevent root rot.
- Soil Type: Well-draining, slightly acidic to neutral soil mix (e.g., cactus mix with compost).
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: moderate
- Pruning Frequency: Annually in late winter or early spring before new growth starts.
- Pruning Intensity: Moderate; selective removal of up to one-third of old growth if needed.
Care Details
Ideal Sunlight Coverage:
Full sun to partial shade (4–6 hours of direct sunlight daily); tolerates some shade in hot climates.
Sunlight Tolerance Tips:
Acclimate gradually to intense sunlight; protect from harsh afternoon sun; adjust placement based on seasonal light changes.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
partial shade to full sun
Morning sun is ideal; provide dappled shade in summer; rotate plant for even growth.
Watering
every 7–10 days, allowing soil to dry slightly between waterings
Maintain consistent moisture without waterlogging; water less in winter; ensure good drainage.
Soil
well-draining, slightly acidic to neutral loam
pH: 6.0–7.0 (slightly acidic to neutral).
Use well-draining mix; avoid heavy clay; amend with compost if needed.
Temperature
Prefers cool to moderate temperatures (50–70°F or 10–21°C); tolerates cold but avoid extreme heat.
Protect from frost; avoid sudden temperature swings; maintain moderate humidity.
Fertilizing
monthly during growing season (spring to summer), every 3 months otherwise
Fertilize in spring before new growth; use half-strength if unsure; stop in fall.
Propagation
Methods
Stem cuttings (semi-hardwood in late summer).
Step-by-Step Propagation Guide
- Take 4–6 inch cuttings.
- Remove lower needles.
- Dip in hormone.
- Plant in medium.
- Maintain humidity.
Best Time: Late summer to early fall when new growth has matured.
Environment
High humidity (70–80%), indirect light, and consistent warmth (65–75°F or 18–24°C).
Medium
Peat-based mix with perlite or sand for good drainage.
Hormone
Recommended to use rooting hormone for better success.
Timeline
Roots in 8–12 weeks; may take a full season to establish.
Tools Needed
Pruners, rooting hormone, propagation tray, misting spray bottle.
Quick Tips
Use healthy parent material; maintain humidity with a cover; keep out of direct sun.
Pruning & Repotting
Pruning Guide
Method
Pinching back new growth; selective branch removal; avoid shearing into old wood.
Pruning Plan
Shape and maintain density; remove dead or diseased branches; encourage bushier growth.
Tools
Pruning shears, loppers, gloves, disinfectant.
Checklist
Disinfect tools; prune dead/diseased wood first; shape evenly; avoid over-pruning.
Repotting Guide
Best Season
Early spring before active growth begins.
Pot Size
Increase pot size by 2–3 inches in diameter; ensure drainage holes.
Method
Remove plant gently; trim roots if necessary; use fresh soil mix; ensure good drainage.
Suggestions
Repot every 2–3 years or when root-bound; beneficial for container-grown plants.
Checklist
Choose right pot; prepare new soil; water before repotting; handle roots carefully.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture; water deeply; ensure drainage; adjust for season.
How to Apply Water Properly
Water thoroughly at the root zone until water drains from the bottom; avoid wetting foliage; water early in the day to reduce evaporation.
Watering Schedule Tips
Water deeply once the top inch of soil feels dry; reduce frequency in winter to prevent root rot.
Soil Improvement
Add perlite or sand for drainage; incorporate organic matter for fertility; ensure good aeration.
Temperature Stress Management
Signs of Temperature Issues
Leaf discoloration (yellowing or browning), wilting, or needle drop.
Cold Stress
Slows growth; may cause needle browning or dieback in prolonged cold without protection.
Solution: Mulch heavily in winter; protect from harsh winds; avoid overwatering in cold.
Hot Stress
Leaves may scorch, wilt, or drop; growth may stall in excessive heat.
Solution: Provide shade during peak heat; increase humidity; water deeply but infrequently.
Fertilizing Guide
Fertilizing Checklist
Choose balanced fertilizer; apply in spring; avoid winter feeding; follow label instructions.
Fertilizing Method
Use balanced slow-release fertilizer in spring; dilute liquid fertilizer monthly during growing season; avoid fertilizing in winter.
Common Problems & Solutions
Toxicity Warning
Cats
Non-toxicChamaecyparis obtusa is not considered toxic to cats. The plant does not contain known compounds that are harmful to felines. However, ingestion of large quantities may cause mild gastrointestinal upset due to the physical nature of the plant material.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if ingested
Dogs
Non-toxicChamaecyparis obtusa is not considered toxic to dogs. The plant does not contain known compounds that are harmful to canines. However, ingestion of large quantities may cause mild gastrointestinal upset due to the physical nature of the plant material.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if ingested
Humans
Non-toxicChamaecyparis obtusa, commonly known as Hinoki cypress, is generally considered non-toxic to humans. However, ingestion of large quantities of its seeds may cause mild gastrointestinal discomfort due to their high fiber content. No significant physiological impact has been documented.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten in large quantities
Frequently Asked Questions
Q: How fast does Chamaecyparis obtusa grow?
A: It is a slow-growing tree, typically adding only 6-12 inches per year.
Q: Is Hinoki Cypress suitable for bonsai?
A: Yes, its small leaves and compact growth habit make it an excellent candidate for bonsai cultivation.
Q: What are the ideal growing conditions for Chamaecyparis obtusa?
A: It thrives in partial shade, well-drained soil, and moderate humidity, though it can tolerate full sun with adequate moisture.
Quick Reference
| Family: | Cupressaceae |
| Care: | moderate |
| Light: | partial shade to full sun |
| Water: | every 7–10 days, allowing so |
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